Join the Mozilla’s Test Days event from 9–15 Jan to test the new Firefox address bar on Firefox Beta 135 and get a chance to win Mozilla swag vouchers! 🎁

Avatar for Username

Eheka Pytyvõha

Emboyke pytyvõha apovai. Ndorojeruremo’ãi ehenói térã eñe’ẽmondóvo pumbyrýpe ha emoherakuãvo marandu nemba’etéva. Emombe’u tembiapo imarãkuaáva ko “Marandu iñañáva” rupive.

Kuaave

Ko téma oñeñongatúma. Ejapo porandu pyahu eikotevẽramo pytyvõ.

element.openOrClosedShadowRoot property always returns null

  • 1 Mbohovái
  • 0 oguereko ko apañuãi
  • 3 Hecha
  • Mbohovái ipaháva cor-el

Tamer Temizer
Tamer Temizer
more options

Hello, I'm trying to use https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/dom/openOrClosedShadowRoot functionality in an extension but the element.openOrClosedShadowRoot always returns null.

Also is there a place in Firefox Devtools console (similar to the Chrome Devtools dropdown) to switch the context from the user console to the extension console so we can try extension only APIs?

Thanks.

Hello, I'm trying to use https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/dom/openOrClosedShadowRoot functionality in an extension but the element.openOrClosedShadowRoot always returns null. Also is there a place in Firefox Devtools console (similar to the Chrome Devtools dropdown) to switch the context from the user console to the extension console so we can try extension only APIs? Thanks.

Opaite Mbohovái (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Open about:debugging and go to "This Firefox" and click the Inspect button next to the extension.